新疆某井田水文地质条件及充水因素分析  

ANALYSIS OF HYDROGEOLOGICAL CONDITIONS AND WATER FILLING FACTORS OF A WELL FIELD IN XINJIANG

作　　者：林雨佳 LIN Yujia(Geophysical Prospecting and Surveying Team of Shandong Bureau of Coal Geology,Jinan 250100,Shandong,China)

机构地区：[1]山东省煤田地质局物探测量队,山东济南250100

出　　处：《资源信息与工程》2025年第2期68-71,共4页Resource Information and Engineering

摘　　要：研究区位于北天山地槽褶皱带,含煤地层主要为侏罗系中统西山窑组,其中西山窑组中段为主要可采煤层,可采煤层24层,累计平均总厚63.95 m,占各煤层平均总厚度的76.25%,可采含煤系数为10.19%。井田内含水层包括中侏罗统头屯河组和中侏罗统西山窑组上段、中段、下段,由于井田地处区域贫水区,地下水补给条件差,均属弱含水层组。井田开采各煤层时,充水主要来自各煤层顶、底板含水层,直接充水水源为煤层顶底板砂岩裂隙水,间接充水水源为大气降水,充水通道主要为矿井开采时产生的采动裂隙及断层带。各含水层之间水力联系较差,煤层开采时,含水层释放水量以静储量为主,井田水文地质条件简单。The research area is located in the North Tianshan geosynclinal fold belt,and the coal-bearing strata are mainly the Jurassic middle Xishanyao Formation,among which the middle part of Xishanyao Formation is the main recoverable coal seam with 24 layers.The cumulative average thickness is 63.95 m,accounting for 76.25%of the average thickness of all seams,and the recoverable coal bearing coefficient is 10.19%.The aquifers in the well field include the upper,middle and lower sections of the Middle Jurassic Toutunhe Formation and Xishanyao Formation,all of which are weak aquifer groups due to the fact that the well field is situated in the regional poor water area and the groundwater recharge condition is poor.When mining coal seams in the well field,the water filling mainly comes from the top and bottom aquifer of each coal seam.The direct water filling source is the sandstone fissure water of the top and bottom plates of the coal seams,the indirect water filling source is the atmospheric precipitation,and the water filling channel is mainly the mining-induced fissures and fault zones generated by mining.The hydraulic connection between the aquifers is poor,the water released from the aquifers is dominated by static reserves when the coal seams are mined,and the hydrogeological conditions of the well field are simple.

关 键 词：煤田地质 水文地质 充水因素 

分 类 号：P641[天文地球—地质矿产勘探]